Lamp.



LfJ. KAHLO'& R. B. CAMERON.

LAMP.

APPLICATION FILED JUNE 13, 1913.

Patented Dec. 30, 1913.

m T N w m guished them to be operated in a difierent manner, par-v ticularly electric means, be'en'and are many desirable forms of light-: ing fixtures, to which form vapor lamps are LEO J. KAHLO AND ROY B. CAMERON, 0F DEFIANCE, OHIO;

LAMP.

Specification of Letters Patent.

Patented Dec. 30, 1913.

Application filed June 13, 1913. Serial No. 773,399.

To a l? whom it may concern:

Be it known that we, LEO J. KAHLo and ROY B. CAMERON, citizens of the United States, of Defiance, in the county of Defiance, in the State of Ohio, have invented new and useful Improvements in Lamps, of

which the following, taken in connection with the accompanying drawings, is a full, clear, and exact descriptlon.

ments in lamps, larly to vapor lamps n which a liquid under pressure is vaporized, mingled with air? and supplied to an incandescing mantle.

It is well known among those familiar with the art that vapor lamps heretofore produced have selves and their operation which distinfrom lighting means adapted not adapted.

The object, therefore, of our invention is to provide a lamp of simple construction and a minimum number of parts so formed and arranged that the distinguishing and necessary features of this is the vaporizing tube and the mixing chamber, shall be readily inclosed in an ordinary shade and normally out of sight, so that the appearance of almost any electrical fixture may-be duplicated.

Another object is to provide a removable vaporizer extending substantially parallel with and adjacent to the support for the lamp so as to utilize a minimum of space,

and having a portion lying adjacent the" mantle of the burner so as to be heated by radiation therefrom, whereby the gasolene or similar liquid fuel will be automatically and efiiciently vaporized after the lamp is once lighted.

A further object is to provide means for removably supporting the lower end of the vaporizing tube and means for readily cleansing the discharge orifice in the vaporizing tube without removing the tube from its supports.

Other objects and uses will appear from the following description.

In the drawings Figure 1 is a cross sectional view of our lamp. Fig. 2 is a perspective view of the vaporizing tube apart from the'lamp.

.be supported by wall. is invention relates to certaln IIIIPIOVBy and pertains more partlcu had a form peculiar to them and that there have style of lamp-that threaded portion of the casing 2-.

In order that our invention may be clearly understood, we have shown it as supported by a drop tubing 1 of any desired length, extending, as shown, from the ceiling of a room, but it is apparent that it may, with equal efficiency, extend from and any other portion of the wall of a building, as particularly the side A portion of the lower end of the tubing 1 is internally threaded for the reception of an externally threaded portion of a valve casing 2. The casing 2 has a reduced end or projecting portion 3 also externally threaded and extending in the tubing -l and provided with an internally'extending conical seat adapted to receive a frusto-conical head or jamb -4- on the end of a feed pipe 5. This feed pipe extends through the tubing land is operably connected to a source of liquid supply under pressure, not necessary herein to illustrate or further describe.

The jamb lis held in engagement with its seat by means of an internally threaded jamb nut 6-, operating upon the threaded end 3 of the casing -2. The j amb nut -6 is preferably, as shown, of substantially the same external diameter as thelinternal diameter of the drop tubing The casing --2 is provided with zag conduit -7- leading from the conical seat in the end 3- to a secondary gas reservoir formed of a hollow section -8 having an externally threaded end fitted into and operably connected to an internally The channel 7- is so arranged as to form a valve seat 9, in connection with which a sliding valve 10 operates to cut off or to allow the passage of the fuel supply. For the purpose of supporting and operating this valve, the casing 2 is provided with a laterally projecting hollow portion 11-, adapted to receive a threaded valve stem 12 whereby the valve is operated by simply turning the valve stem. The outer portion of the projection --l1 is externally threaded for receiving the usual packing nut l3 to prevent leakage.

The sect-ion 8 is provided with a laterally projecting arm 14 preferably as shown, substantially right angular in cross section and having a conduit 15 leading therethrough and communicating with the reservoir a zigformed in the main body of the section -8-. The lower end of the arm 1lis externally threaded and pro vided with an internally extending conical seat adapted to receive a jamb 16- preferably formed integral with a removable vaporizer -17-, the jamb held in liquid-tight connection with its seat by means of an internally threaded jamb nut 18-.

The lower end -8 is externally threaded and adapted to coact with and be received by an internally threaded portion of a projection -19- upon a hollow inverted J-shaped mixing chamber -20-, preferably formed of a single casting and having a burner head 21- secured to its shorter end in any suitable and well known manner, not necessary herein to describe. The burner head -2l is provided with a mantle 2'2 attached thereto and adapted to be heated by the burning fuel to an incandescing heat.

The section -8 is adapted to receive and support a shade-holder -23- of circular or other form, positioned above the arm -14tso as to inclose the same. A shade 24. is secured thereto by means of adjustable screws 25 passing through the flanged portion 26 of the shade-holder. The shade-holder is further provided with a canopy or cover '27- having air passages -28-- therethrough, affording an outlet or ventilation for the lamp chamber.

The vaporizer -17- above referred to extends downwardly from its point of connection to the arm -14 in a direction substantially parallel with the section --8- and is curved around the horizontal portion of the mixing chamber so as to lie between the longer arm of the mixing chamber and the mantle Q2 and is flattened toward its lower end, and bent laterally at substantially a right angle to itself across the open lower end of the longer arm of the mixing chamber 20 and is provided with an orifice or outlet -29- discharging upwardly into the mixing chamber. It will be readily apparent that when the lamp is once in operation, the adjacent portion of the vaporizing tube is directly subjected to radiation from the i'ncandescing mantle, whereby the vaporization of the liquid fuel is automatic and continuous.

The lower side of the flange upon the vaporizer is provided with an opening registering with the orifice or outlet upon the upper side thereof and this opening is surrounded with a suitable internally threaded circumferential flange or embossment -30- forming communicating means for the insertion of a needle, or other clean-cut device for the discharge orifice -29-. The flange 30 is normally provided with a closing plug or screw 31.

For the purpose of aiding in supporting frusto-conical of the section or reservoir the vaporizer and for holding it in operable position relative to the burner and the mixing chamber,the longer arm of the mixing chamber is provided with a projecting flange 32 having a laterally extending opening or conduit -33 adapted to receive a laterally extending projection 84cupon the end of he vaporizing tube, said projection formed by cutting away a portion of said tube.

The vaporizing tube -17- is provided with a wick or packing -35- of asbestos or other material which acts as a filter for removing any foreign particles from the fluid. The lower end of this tube, just beyond the discharge orifice -29-, is flattened sufliciently to entirely close the passage therethroughand prevent the escape of fuel.

In operation, the liquid fuel under pressure passes from a tank,;not shown, through the feed pipe -5- to the valve -l0- and the supply maybe regulated or shut oif by means of this valve. The fluid then passes into the reservoir formed by thehollow section 8, is forced into thevaporijzing tube 17 andis filtered and retarded in its passage therethrough by the wick or packing -S5-. By lighting a match or taper an applying the flame to the lower end of the tube 17-, the liquid fuel is vaporized and passes through the discharge orifice: -29 into the mixing chamber 20-, is mingled with air and supplied to the mantle 22'-. After the operation is once started, the radiation from the mantle sufliciently heats the tube -17' to vaporize the fuel so that the continuing operation is automatic.

What we claim is 1. A lampcomp'rising a tubular mixing chamber havlng substantially parallel ex-' tending arms vertically arranged and a substantially horlzontal connecting portion, a

burner connected to one of said arms, a vaporizing tube discharging into the other arm of the mixing chamber and having a portion lying between the arms of the mixing chamber, in substantially a vertical direction an curved partly around the horizontal portion of the mixing chamber and having its upper end operably connected to a source of fuel supply, and a valve in the connection between the vaporizing tube and its source of fuel supply. I 2. A lamp comprising an inverted J- shaped mixing chamber, a burner connected to the shorter arm of said chamber, a vaporizing tube discharging into the longer arm and having a portion lying between said burner and said longer arm, said vaporizing tube extending in substantially a vertical direction and having a curved intermediate portion partially encircling the horizontal portion of the mixing chamber,

said vaporizing tube extending the upper end of said tube operably connected to a source of liquid fuel supply and a valve in the connection between said vaporizing tube and its source of fuel supply.

3. A lamp comprising a hollow mixing chamber having substantially parallel extending arms, a burner connected to one of said arms, a vaporizing tube operably connected to a source of fuel supply and having a portion lying between the arms of the mixing chamber, the bottom of said tube bent at substantially right angles to the main body thereof and having a portion thereof cut away to form a notch and a laterally extending flange, a seatformed in a wall of the mixing chamber cooperating with said .notch and flange to prevent movement of said tube in a burner.

4. In a gas lamp, a reservoir section operdirection toward or from the ably connected to a source of fuel supply, said reservoir section supporting a mixing chamber having vertically extending arms of unequal length and a substantially horizontal connecting portion, a vaporizing tube having one end operably connected to and supported by an arm extending from the reservoir section, said vaporizing tube having a portion partially encircling the horizontal portion of the mixing chamber and extending downwardly between the arms of the mixing chamber and having a port discharginginto the longer arm thereof, and a mantle operably In witness whereof we have hereunto set our hands this tenth day of June 1918.

LEO J. KAHLO. ROY B. CAMERON. Witnesses:

GLEN F. KILLEY, Bnssm ADAMS.

R Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of latents, Washington, D. 0.

supported on the other arm. 

